64

Lesson 64 of 84 ยท Matter and Atoms

Experiment

Mass and Volume (Part 2)

What You'll Learn

Distillation separates mixtures based on different boiling points. Heating salt water causes water to evaporate and condense, leaving salt behind and producing fresh water.

Key Words

  • solubility
  • concentration

Materials Needed

  • plastic bottles
  • balloons
  • measuring cups
  • paper towels
  • thermometer
  • strainer

Safety First

  • Handle glass items carefully to avoid breakage.
  • Do not mix unknown chemicals together.
  • Tie back long hair before starting the experiment.

Steps

Step 1 โ€” Read

Read and learn: Distillation separates mixtures based on different boiling points. Heating salt water causes water to evaporate and condense, leaving salt behind and producing fresh water.

Step 2 โ€” Do

Create a labeled diagram of what you built or observed.

Step 3 โ€” Observe

Observe what happens and describe it in detail.

Step 4 โ€” Record

Record your observations in your science journal.

Check Your Understanding

Question 1

1 of 3

What holds atoms together in a molecule?

Mass and Volume (Part 2) โ€” Matter and Atoms | 7th Grade Science | LittleActivity | LittleActivity